Question: Name the earthquake that showed a Mercalli scale of IX but had the least magnitude on the Richter scale?
Paraphrase: What earthquake had a Mercalli scale of IX but the lowest Richter scale magnitude?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q7944 . ?ent wdt:P2528 ?obj . ?ent wdt:P2784 wd:Q23925706} ORDER BY ASC(?obj)LIMIT 5 
Answer: 62 Pompeii earthquake, 62 Pompeii earthquake, 1895 Ljubljana earthquake, 1917 Bali earthquake, 2011 Tōhoku earthquake and tsunami